The nurse is caring for a client who experienced an immune response resulting from exposure to a foreign material. Which blood components or pathophysiological processes represent foreign materials? Select all that apply.

A) Autologous stem cells
B) One unit of packed red blood cells (PRBCs)
C) Thromboembolism
D) Normal saline solution
E) Renal calculus


B) One unit of packed red blood cells (PRBCs)
D) Normal saline solution

Explanation: A) Foreign material is, essentially, anything from outside the body. Autologous stems cells, thromboemboli, and renal calculi all originate within one's own body, and are therefore not considered foreign materials.
B) Packed red blood cells from another person originate outside one's own body, and are therefore considered a foreign material.
C) Foreign material is, essentially, anything from outside the body. Autologous stems cells, thromboemboli, and renal calculi all originate within one's own body, and are therefore not considered foreign materials.
D) Normal saline solution does not originate within one's own body, and is therefore considered foreign material.
E) Foreign material is, essentially, anything from outside the body. Autologous stems cells, thromboemboli, and renal calculi all originate within one's own body, and are therefore not considered foreign materials.

Nursing

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